Start Strategies:

Evenly Paced Start: Pace is not changed.
Conservative Start: Slower than average pace during the first few miles as one eases into race pace.
Very Conservative Start: Same as Conservative Start, but the first few miles are slower than those in the Conservative Start.

Pacing Strategies:

Even Effort: This strategy uses the energy cost of the uphills and downhills of the course to approximate paces requiring even effort.
Even Pace: All splits are equal. However, using a Conservative or Very Conservative Start Strategy will change the splits to incorporate the start change.
Negative Split: First half Pace starts getting faster during the second half of the race. The uphills and downhills are still used to determine the initial paces before calculating the negative split.
Aggressive Negative Split: Same as Negative Split, but paces drop more during the second half of the race.
Positive Split: Pace starts getting slower during the second half of the race. Like with the Negative Split, the uphills and downhills are still used to determine the initial pace.
Aggressive Positive Split: Same as Positive Split, but paces slow more during the second half of the race.

Pace Band Size:

Pace Band size is mainly a personal preference. Some people like it loose and some people find it more comfortable with a snugger fit. One thing to keep in mind is that the snugger the fit, the more difficult it may be to rotate the band while running to see all the splits - especially when your wrist gets wet.

Measure around your wrist and decide if you want a loose or snug fit. The band size is the actual circumference it will fit. For example, if you had a drinking glass that is 7" around (circumference), a 7" pace band will fit around it exactly.